function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bezděčková, Klára & Bezděčka, Pavel & Macek, Ján', 6],
    ['Chen, Zhilin & Zhou, Shanyi & Huang, Jianhua', 75],
    ['Christoph Germann', 8],
    ['Collingwood, C. A.', 12],
    ['Else, George R. & Bolton, Barry & Broad, Gavin R.', 26],
    ['Forel, A.', 9],
    ['Francoeur, A.', 6],
    ['Förster, A.', 19],
    ['Gratiashvili, N. & Barjadze, S.', 12],
    ['Jerdon, T. C.', 8],
    ['Kiran, Kadri & Karaman, Celal', 10],
    ['Lapeva-Gjonova, Albena & Antonova, Vera', 30],
    ['Nylander, W.', 9],
    ['Smith, F.', 110],
    ['Ward, P. S.', 11],
    ['Other (23)', 35]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=386)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);